Home / 10,431.38-15,645.69-3,767.19

Finding the Fourth Proportional to 10,431.38, 15,645.69 and 3,767.19

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Solution

The fourth proportional to 10,431.38, 15,645.69 and 3,767.19 is: 5,650.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.38 : 15,645.69 = 3,767.19 : x
  2. Step 2: Convert to fraction form
    10,431.38/15,645.69 = 3,767.19/x
  3. Step 3: Cross multiply
    10,431.38x = 15,645.69 × 3,767.19
  4. Step 4: Simplify right side
    10,431.38x = 58,940,286.91
  5. Step 5: Solve for x
    x = 58,940,286.91/10,431.38
  6. Step 6: Final answer
    x = 5,650.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.